HW 1 Begin Date: 12/29/2021 12:01:00 AM -- Due Date: 1/9/2022 11:59:00 PM End Date: 3/18/2022 11:59:00 PM (5%) Problem 20: Suppose A = (-3.27 m)i + (3.4 m)j, B = (1.21 m)i + (-3.98 m)j + (2.87 m)k, and D = (-3.74 m)i + (-4.23 m)j. 50% Part (a) What is the angle, in degrees, between D and A? 0 = 94.63 - Correct! 50% Part (b) What is the angle, in degrees, between D and B? ed ed 0 = ted ted sin cos() tan() 7 8 19 HOME ted cotan( asin acos() 4 6 ted atan( acotan( sinh() 1 2 3 ted cosh( tanh() cotanh() ted Degrees O Radians BACKSPAC CLEAR ted ted Submit Hint Feed I give up! ted Hints: 0% deduction per hint. Hints remaining: 1 Feedback: 0% deduction per feedback. leted